NetBSD/etc/rc.d/ipnat

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#!/bin/sh
#
# $NetBSD: ipnat,v 1.8 2002/09/24 11:03:53 martti Exp $
#
# PROVIDE: ipnat
# REQUIRE: ipfilter mountcritremote
# BEFORE: DAEMON
. /etc/rc.subr
name="ipnat"
rcvar=$name
config="/etc/ipnat.conf"
start_cmd="ipnat_start"
stop_cmd="/usr/sbin/ipnat -F -C"
reload_cmd="/usr/sbin/ipnat -F -C -f ${config}"
extra_commands="reload"
ipnat_start()
{
if [ ! -f ${config} ]; then
return 0
fi
if [ "`/sbin/sysctl -n net.inet.ip.forwarding`" = "0" ]; then
logger -s -p daemon.warning -t ipnat \
"WARNING: net.inet.ip.forwarding is 0"
fi
if ! checkyesno ipfilter || [ ! -f /etc/ipf.conf ]; then
echo "Enabling ipfilter for NAT."
/sbin/ipf -E -Fa
fi
echo -n "Installing NAT rules ... "
/usr/sbin/ipnat -F -f ${config}
}
load_rc_config $name
run_rc_command "$1"